I bought this iMac a few months ago, it's the latest version. I just upgraded to Yosemite on Friday and ever since, my computer is restarting randomly 2-3 times a day (twice so far today). Anybody seeing similar? No problems before this, this iMac has been flawless with no crashes or freezes at all since purchased earlier this year. I just googled how to find the crash reports and found a whole bunch of reports dating back to Friday that appear to be related to Chrome or Chrome Helper and "wakeups_resource"- I don't know much more than that. Not all of these are restarts but the ones today (1:35) and the 10:45AM one definitely were. Pretty sure the one last night at 11PM was a restart as well. I can post the contents of these reports if it helps. Any advice?